#1F2D72#1F2D72

#1F2D72 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 33.1% C 0.120 H 269.9°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D72
RGB	rgb(31, 45, 114)
HSL	hsl(230, 57%, 28%)
HSV	hsv(230, 73%, 45%)
CMYK	cmyk(72.8%, 60.5%, 0%, 55.3%)
CIE-LAB	lab(21.51, 19.71, -41.58)
CIE-LCH	lch(21.51, 46.01, 295.36°)
OKLab	oklab(33.1% -0.0002 -0.1198)
OKLCH	oklch(33.1% 0.12 269.9)
XYZ	xyz(4.5397, 3.3825, 16.3300)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D72 #72641F

analogous

#1F5672 #1F2D72 #3A1F72

triadic

#1F2D72 #721F2D #2D721F

tetradic

#1F2D72 #721F56 #72641F #1F723A

square

#1F2D72 #721F56 #72641F #1F723A

split-complementary

#1F2D72 #723A1F #56721F

monochromatic

#070918 #121A42 #1F2D72 #2C40A2 #4058CB

Accessibility & contrast

On white

12.53

#1F2D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F2D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D72

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D72	#FFFFFF	#000000	##FFFFFF
##1F2D72	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003874

Deuteranopia (green-blind)

#003071

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2d72;
/* rgb */ color: rgb(31, 45, 114);
/* oklch */ color: oklch(33.1% 0.120 269.9);

Tailwind

colors: {
  custom: {
    50: '#67659b',
    500: '#1f2d72',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d72;
$custom-light: #67659b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d72",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 114
  },
  "hsl": {
    "h": 229.88,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.33097,
    "c": 0.11982,
    "h": 269.9
  },
  "luminance": 0.03383
}

Semantic roles & 50–950 ramp

primary

#1F2D72

secondary

#A69647

accent

#C747E0

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07050E

muted

#7A7A7E

Preview Lab

Preview with #1F2D72

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →